#encoding:UTF-8

'''
Created on Mar 2, 2014

@author: Wu Botao
'''

def counter(start_at=0): 
    count = [start_at] 
    def incr():
        count[0] += 1
        return count[0]
    return incr


count = counter(5)
print count()
print count()
print count()
print count()
